电动轮汽车驱动机构冗余优化与主动安全控制

中国机械工程 ›› 2015, Vol. 26 ›› Issue (8): 1124-1128.

电动轮汽车驱动机构冗余优化与主动安全控制

丁惜瀛1;王亚楠1;李琳1;张泽宇2;王春强1

1.沈阳工业大学,沈阳，110870
2.辽宁省电力有限公司，沈阳，110870

出版日期:2015-04-25 发布日期:2015-09-10
基金资助:
沈阳市科学计划项目（F12-277-1-11）

Optimal Allocation of Redundant Actuator and Active Safety Control for Wheel-motored Electric Vehicle

Ding Xiying1;Wang Yanan1;Li Lin1;Zhang Zeyu2;Wang Chunqiang1

1.Shenyang University of Technology,Shenyang,110870
2.State GRID Liaoning Electric Power Supply Co.,Ltd.,Shenyang,110870

Online:2015-04-25 Published:2015-09-10

摘要/Abstract

摘要：

针对电动轮汽车全新的底盘结构策略，采用分层控制，将姿态跟踪与底盘操纵量优化分配相结合，上层姿态控制器采用精确线性化控制策略克服系统非线性，生成改善行驶姿态所需合力矩;下层分配控制器采用二次规划算法，优化因四轮独立驱动而形成的冗余执行机构，综合实现姿态参数跟踪误差和轮胎力输出最小化，优化分配驱动扭矩、制动扭矩,减少整车能耗。仿真结果表明，该控制结构可使运行轨迹很好地跟踪驾驶员给定轨迹且车辆操作稳定性及安全性均得到明显的提高。

关键词: 冗余执行机构, 优化分配, 主动安全控制, 分层控制

Abstract:

Contraposing the new chassis structure, a hierarchical vehicle stability control strategy was used and combined the gesture tracking and chassis manipulated variable optimized allocation. The high level of the control strategy conquered the system nonlinear by adopting precise linearization control strategy, which proposed the required torque for the improved steer structure. Quadratic programming was used in the low level, which aimed at optimizing the redundant actuator,minimizing the output of the tracking errors and tire force posture parameters, and decreasing energy consumption of the vehicle. The simulation results indicate that the proposed method can enhance the vehicle handling stability,the control efficiency is also improved.

Key words: redundant actuator, optimal allocation, active safety control, hierarchical control

中图分类号:

U461.6

丁惜瀛, 王亚楠, 李琳, 张泽宇, 王春强. 电动轮汽车驱动机构冗余优化与主动安全控制[J]. 中国机械工程, 2015, 26(8): 1124-1128.

Ding Xiying, Wang Yanan, Li Lin, Zhang Zeyu, Wang Chunqiang. Optimal Allocation of Redundant Actuator and Active Safety Control for Wheel-motored Electric Vehicle[J]. China Mechanical Engineering, 2015, 26(8): 1124-1128.

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